Alarm-bell



O.E.CARROLL."

(No Model.)

ALARM BELL. No. 459,778.

Patented Sept. 22; 1891.

WITNESSES:

Nrrnn STATES CHARLES E. CARROLL, OF NElV HAVEN, CONNECTICUT.

ALARM-BELL.

SPECIFICATION forming part of Letters Patent No. 459,778, datedSeptember 22, 189i.

Application filed January 12, 1891- Serial No. 377,462. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E. CARROLL, a citizen of the United States,residing at New Haven, in the county of New Haven, and State ofConnecticut, have invented certain new and useful ImprovementsinAlarm-Bells, of which the following is a specification.

My invention has for its object to provide an alarm-bell for bicycles orother uses requiring particular adaptation of the mechanism forportability and exposure to weather.

The improvement consists in the novel combination and arrangement of apair of gongs or cupped bells and an annular encircling band forming aninclosing case for the actuating mechanism, all as hereinafter morefully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is afront elevation of my improved alarm-bell shown attached tothe handle of the steering mechanism of a bicycle. Fig. 2 is a sideelevation of the same. Fig. 3 is a view corresponding to Fig. 1, withthe bell or gong removed to show the interior construction of the deviceand the alarm mechanism; and Fig. 4 is a vertical section on the lineat, Fig.3,

Referring to the drawings, the reference letters A A respectivelydesignate the plates or sides of a supporting-frame B, which side platesare arranged parallel to each other and connected or secured together bysuitable transverse rivet-rods c, passing through the plates and rivetedover at the ends, as shown. The supporting-frame is suspended within anencircling band D, which is provided with interior radialsuspending-arms 6, having their inner ends perforated to receive therivet-rods c. The said rods are each formed with a shoulder f at theends adjacent to the frame A, against which the frame is held by the endof the rod being riveted over, as shown, whereby all the rods aresecured stationary in the said plate. Suitable pins'i are passed throughthe rods to form shoulders against which the radial arms abut on theside oppoposite the plate A, and suitable sleeves g are slipped on therods between the radial arms and the plate A, forming shoulders againstwhich the said plate A abuts and is held by the riveted ends of therods, as shown. Thus arranged the supporting-frame 1s firmly fastenedand suspended within the encircling 'band D.

The plate A is formed with a central outwardly-projecting hub H, havinga screwthreaded boss 70 on the end thereof, and the plateA has acorresponding hub H. Each of the hubs is perforated throughout itslength to provide bearings Z for the reception of the centralmainspring-arbor m of the clock-work mechanism, both of said journalsbeing in alignment and at right angles to the encircling band D.

A gong or cup-shaped bellT,hav.ing a central perforation n fitting theboss it", is supported upon the said boss, secured in place by the nut19 and having its flange or rim r inserted within the encircling band D,adjacent to the arms 6. A similar gong T is secured to the hub H bymeans of a screw 13, inserted through its central perforation n andscrewed into the hub, clamping the bell firmly against the end thereofand securingit, with the flange or rim 0' inserted within the band Dfrom the 7 5 side opposite the bell-flange 4'. Thus arranged the gongsand their encircling band form a case El which is ornamental in designand well adapted for portability, exposure to weather, and issufficiently proof against the admission of dust or rain to themechanism within the case.

The arbor m projects through the hub H and is provided with athumb-piece 7L2, screwed thereon, by which it may be turned. A cogwheelS is secured on the arbor, and a suitable train of gearing (not shown)is arranged intermediate of the said wheel S and an escapement-wheel aand driven by a suitable mainspring (not. shown) on the arbor on, all 6of which mechanism is ordinary clock-work well known and here needs nofurther description.

A suitable escapement or detent device a is arranged to vibrate inengagement with the wheel a on a rock-shaft if, j ournaled through theplates A A, to which rock-shaft a pair of arms a is suitably fastenedand provided with hammers a at their ends and arranged in position tostrike the flanges of the gongs. 10o

The rock-shaft also carries a bent arm to, the end of which isnormallyin engagement With a lever R arranged through the encirclingband D and fulcrumed on a pivot riinserted through a suitable projectionr on the inner side of the band. A spring 7- secured on thesupporting-frame, is arranged in engagement with the inner end 'r of thelever R and adapted to hold the lever outward against the end of the arm'10; but when in operation the opposite end t of the lever is raised theescapement mechanism is thereby freed, and the hammers n" will bevibrated and repeatedly struck against the gongs actuated by theclock-Work. For this purpose the lever B is so placed that its outer endwill hang in position to be readily lifted with the thumb when thebicycle-handle Z is held in the grasp, and the alarm-bell is fastenedthereon by means of the flange 0' on the band D and the clip 0 andsuitable screws 0*.

It will be seen that the novel inclosing ease formed by the peculiararrangement of the pair of bells and the encircling band is Well adaptedfor use as an ordinary call-bell, doorbell, or alarm of any sort, andthat the spring actuated clock-Work may be Wholly dispensed with andonly the hammers and their rockshaft left to remain, as in door or callbells which are not Winding alarms, but actuated bypressing the hammerseither directly or by pressing suitable mechanism connected with thehammers,the clockwork forming no part of my invention.

I claim 1.. In an alarm-bell,the combination of the supporting-frame,the pair of gongs or cupshaped bells arranged with their flanges or rimsin juxtaposition and respectively secured at their centers uponprojecting arms or hubs on the said supporting mechanism, and theencircling band encircling the flanges of the bells and covering thejoint between them and secured to the supporting mechanism by armsprojecting through said joint, substantially in the mannerand for thepurpose specified.

2. In an alarnrbell for bicycles, the combination of thesupporting-frame, consisting of the side plates A A and connectingrivetrods, the side plates being provided with the hubs ll II, theencircling band D,having the radial arms supporting the said rivet-rodsand fran1e,the pair of gongs or cupped bells T '1", respectivelyattached or secured on the said hubs, with their flanges or rims enteredwithin the said encircling band to form an inclosing case for the bellmechanism or alarming devices, substantially as and for the purposespecified.

CHARLES E. JARROLL.

Witnesses:

HENRY BUSHNELL, CHARLES \V. STEnnINs.

